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Showing content from https://www.geeksforgeeks.org/advance-java/maven-build-and-test-project/ below:

Maven - Build & Test Project

Last Updated : 04 Aug, 2025

Here is how internally the maven build process is done with testing test cases also:

graph TB
    subgraph Project Structure
        A[Project Source Code]
        A1[pom.xml]
        A2[src/main/java/com/example/App.java]
        A3[src/test/java/com/example/AppTest.java]
    end
    
    subgraph Maven Commands
        B[mvn validate]
        C[mvn compile]
        D[mvn test]
        E[mvn package]
        F[mvn verify]
        G[mvn install]
        H[mvn deploy]
    end
    A --> B

    B --> C
    C --> D
    D --> E
    E --> F
    F --> G
    G --> H

Description of Each Phase:

• Validate: The Maven Ensures the project is valid and all required information is available.
• Compile: Maven Build tool Compiles the source code.
• Test: Executes tests to validate code correctness
• Package: Packages the compiled code into a distributed formats like JAR, WAR and other formats
• Verify: Performs additional checks, typically for integration testing.
• Install: Installs the package to the local Maven repository.
• Deploy: Deploys the package to a remote repository for use by other projects.

Here we created a sample Maven project using Spring Initializr with the required dependencies for the project. Below is the step-by-step process for building and testing a Maven project using Maven commands.

First create a sample maven project by using your favorite IDE. Here, we use Spring Tool Suite and select required dependencies for this project. Below are the dependencies.

Dependencies:

<dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
        <dependency>

            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-devtools</artifactId>
            <scope>runtime</scope>
            <optional>true</optional>
        </dependency>
        <dependency>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
            <optional>true</optional>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>
    </dependencies>

Project Structure:

Once project is created successfully, write sample test cases in the test class which is located in src/test/java location in the project.

MavenbuildApplicationTests.java:

package com.app;

import static org.junit.jupiter.api.Assertions.assertTrue;

import org.junit.jupiter.api.Test;
import org.springframework.boot.test.context.SpringBootTest;

@SpringBootTest
class MavenbuildApplicationTests {

    @Test
    void contextLoads() {
    }

    @Test
    public void shouldAnswerWithTrue() {
        assertTrue(true);
    }
}

Now, open the command prompt and redirect to your project folder and run the following command to validate the project:

mvn validate

Once successfully validated the project, we need to compile the source code.

mvn compile

Now, Run the unit tests once compilation is completed.

mvn test

Now Package the compiled code.

mvn package

Run integration tests and perform additional verifications

mvn verify

Maven Build Success:

Now, Install the package to Local Repository.

mvn install

Maven Build Success:

Now Deploy the package to Remote Repository.

mvn deploy

Maven Build Success:

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